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<?php |
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/** |
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* @copyright Copyright (c) 2020, Matias De lellis <[email protected]> |
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* |
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* @author Matias De lellis <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\FaceRecognition\Helper; |
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class FaceRect { |
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1 |
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public static function overlapPercent(array $rectA, array $rectB): float { |
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// Firts face rect |
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$leftA = $rectA['left']; |
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$rightA = $rectA['right']; |
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$topA = $rectA['top']; |
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$bottomA = $rectA['bottom']; |
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// Face rect to compare |
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$leftB = $rectB['left']; |
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$rightB = $rectB['right']; |
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$topB = $rectB['top']; |
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$bottomB = $rectB['bottom']; |
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// If one rectangle is on left side of other |
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if ($leftA >= $rightB || $leftB >= $rightA) |
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return 0.0; |
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// If one rectangle is above other |
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if ($topA >= $bottomB || $topB >= $bottomA) |
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return 0.0; |
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// Overlap area. |
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$leftO = max($leftA, $leftB); |
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$rightO = min($rightA, $rightB); |
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$topO = max($topA, $topB); |
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$bottomO = min($bottomA, $bottomB); |
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// Calculate the areas of all the rectangles |
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$areaA = ($rightA - $leftA) * ($bottomA - $topA); |
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$areaB = ($rightB - $leftB) * ($bottomB - $topB); |
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$overlapArea = ($rightO - $leftO) * ($bottomO - $topO); |
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// Calculate and return the overlay percent. |
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return floatval($overlapArea / ($areaA + $areaB - $overlapArea)); |
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} |
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} |
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matiasdelellis /
facerecognition
